While we are getting close to the launch of AMD's new Radeon 300-series lineup, a new report suggest that most of the upcoming Radeon 300 series will be based on older GCN 1.1 and GCN 1.2 architecture while Fiji GPU will actuallly be the only new chip.

While there have been plenty of rumors regarding AMD's upcoming Radeon R9 300 series graphics cards, including details on the Fiji XT GPU and High-Bandwidth Memory (HBM), AMD has now officially confirmed that it is putting the finishing touches on the new Radeon R9 300 series.

New evidence coming from two LinkedIn profiles of AMD employees suggest that AMD's upcoming Radeon R9 380X graphics card which is expected to be based on the Fiji GPU will actually use High-Bandwidth Memory.